Hand taper



April .12, M66 P. F. AURICH ETAL HAND TAPER 5 Sheets-Sheet 1 Filed July5 1961 /NVEN70R$ PErEREAuR/cH GEORGE G. BE/vusA GERALD h. JHAFF MELV/NJ. J'TRAUB M M ATTORNEYS A riHZ, 1966 P. F. AURICH ETAL 3,245,850

HAND TAPER Filed July 5, 1961 5 Sheets-Sheet 2 /NVENTORS PETER F. AuRlcHGEORGE G. BENusA GERALD MSHAFF MEL VIN ISTRA UB ATTORNEYS rifi 12, 1966P. F. AURICH ETAL 3,245,360

HAND TAPER Filed July 5, 1961 5 Sheets-Sheet 3 /N VEN roRs PETER F.AuR/cH GEORGE G. BEA/USA GERALD h. SHAFF MEL w/v J. JTRAUB ATTORNEYS p1966 P. F. AURICH ETAL 3,245,860

HAND TAPER Filed July 5, 1961 5 Sheets-Sheet 4 I l I I f 1 T k/N|/EN70RS PETER F. A UR/CH GEORGE 6. BENUJA GERALD l1. SHAFF MEL VIN J.JrRm/B ATTORNEYS Aprifi 12, 1966 P. F. AURICH ETAL HAND TAPER 5Sheets-Sheet 5 Filed July 5. 1961 HA 5 w ix m mwmmm R 3 w G H J r EDN AR 6 L E R A V TORE- I EEE P GM United States Patent HAND TAPER Peter F.Aurich, George G. Benusa, and Gerald H. Shaft, Minneapolis, and MelvinJ. Straub, Hopkins, Minn., assignors to Possis Machine Corporation,Minneapolis,

Minn., a corporation of Minnesota Filed July 5, 1961, Ser. No. 121,95319 Claims. (Cl. 156-486) This invention is a novel tape applying machinewhich employs a novel drive mechanism.

The taping cartridge is novel in its extreme simplicity and compactnesswhich makes it possible to incorporate the entire mechanism in a handsupported device that can be taken to the objects to be taped ratherthan necessitating bringing the objects to be taped to the tapingmachine. This compactness is achieved at least in part by having thetape feeding, cutting, releasing and applying mechanism all synchronizedand driven by the same driving source so that only one source of poweris necessary for the entire mechanism. Another novel feature of thetaping cartridge includes having the tape releasing mechanism intersectand operate from below the tape engaging surface of the tape feedingmechanism. Yet another novel feature of the device is using an endlessbelt as the tape releasing structure which also act as a tape guidingmeans. The tape applying structure is a C-shaped member that is drivenin a rotary pattern together with tape pressing structure containedWithin the C-shaped tape applying means.

The driving mechanism is believed novel in the combination of a torquelimiting structure with a single revolution driving clutch arrangement.This is a combination in tandem of an overload clutch and a camcontrolled spring gripping driving control clutch.

Accordingly, it is the principal object of this invention to provide anovel taper.

It is a further object of this invention to provide a novel taper whichincorporates a single power mechanism to operate all of the stepsinvolved in metering cutting and applying tape.

A still further object of this invention is to provide a taper in whichthe power mechanism is both controlled as to the amount of torqueapplied to the mechanism and in the distance that it drives at any oneimpulse of the controlling structure.

It is a still further object of this invention to provide a taper thatincorporates tape releasing mechanism which actually intersects andoperates from beneath the surface of the tape driving or feeding means.

A still further object of this invention is to provide a taper in whichthe tape feeding, cutting, releasing and applying structures are allrotary and synchronized as to be constantly related to each other in afixed pattern.

It is a still further object of this invention to provide a taper inwhich the tape releasing mechanism by reason of its being in the form ofendless belts or bands may serve also as a tape guiding structure.

Other and further objects of the invention are those inherent andapparent in the apparatus as described, pictured and claimed.

To the accomplishment of the foregoing and related ends, this inventionthen comprises the features hereinafter fully described and particularlypointed out in the claims, the following description setting forth indetail certain illustrative embodiments of the invention, these beingindicative, however, of but a few of the various ways in which theprinciples of the invention may be employed.

The invention will be described with reference to the 3,245,860 PatentedApr. 12, 1966 drawings in which corresponding numerals refer to the sameparts and in which:

FIGURE 1 is a side elevation of the entire device with hidden elementsillustrated with broken lines;

FIGURE 2 is an isometric illustration of Wires that have been taped withthe mechanism of the invention;

FIGURE 3 is a sectional view of the driving mechanism taken on the line33 of FIGURE 1 but drawn to a substantially larger scale than FIGURE 1;

FIGURE 4 is a vertical section of the taping cartridge taken on the line44 of FIGURE 3; the scale is that of FIGURE 3, and broken linesillustrate hidden parts;

FIGURE 5 is a fragmentary representation of the tape applying means withthe object shown in FIGURE 4 having been advanced into the tape applyingmeans in order to have tape applied thereto; the scale is that of FIGURE3;

FIGURE 6 is a vertical section taken at right angles to the verticalsection of FIGURE 4 and taken on the line 6-6 of FIGURE 4 but with themechanism positioned as illustrated in FIGURE 7; broken lines illustratehidden parts; the scale is that of FIGURE 3;

FIGURE 7 is a fragmentary view of a portion of the mechanism illustratedin FIGURE 4 and drawn to that scale but having been driven to adifferent relative position of the parts; and

FIGURE 8 is a section taken on the line 88 of FIGURE 7.

Turning first to FIGURE 1 of the drawings, a conventional motor 10supplied with an ordinary pistol grip 11 provides both motive power andone means of supporting the device when in use. The armature 12 of motor10 is connected to a motor shaft 14 which extends into the housing 15 ofthe drive mechanism of the device. The arrangement of the entire drivemechanism will be discussed in detail in connection with FIGURE 3.

Housing 15 also provides a means for attaching the bracket 16 theretowhich is a suitable means for supporting in operable position a roll oftape 17 from which a single layer of tape 18 may be withdrawn anddirected into the taping cartridge 19. The taping cartridge is alsosecured to the housing by suitable means that permits it to be releasedtherefrom. A suitable manner of doing this is seen in FIGURE 1 where thedowel pins 20 position the cartridge with respect to housing 15 and thescrew 21 holds the cartridge and the dowel pins in close associationwith each other so that the dowel pins may effectively determine therelative positions of the cartridge and housing 15.

At 22 is seen the entrance to the tape applying portion of the deviceand the lower faces of a frame of cartridge 19 adjacent to the opening22 may be pointed as at 24 in order to make it possible to slip iteasily under wires or other objects to .be taped. Operation of the tapefeeding and applying mechanism is controlled by a trigger 25 which ispositioned traditionally with respect to the pistol grip 11. The methodof operation of the device is to have motor :10 rotating constantly whenthe device is intended to be used and to use trigger 25 to control thestarting and stopping of the tape metering and applying structure.

In FIGURE 2 a bundle of wires 26 may be seen to have had bands of tape18 applied thereto in order to hold them together as in a wiringharness, for example.

Turning now to FIGURE 3, the housing 15 is seen to be made up of twoparts that are secured together conventionally hence neither shown nordescribed. One part of housing 15 may be formed integrally with thebracket 16, a fragment of which appears at the top of FIGURE 3. Insidethe housing, motor shaft 14 is provided with "ice a worm 27 whichengages a suitable combination worm gear overload clutch portion 28. Theoverload clutch portion has on its face a groove 29 within which aredetents that receive the balls 30 in order to provide a drivingconnection between the portion 28 of the overload clutch and thecooperating portion 31 of the same clutch. Each of the balls 29 has aspring 32 behind it which urges it in the direction of portion of theoverload clutch that is combined with worm gear 28.

As long as the torque applied by the shaft 14 does not have to exceed agiven value in order to rotate portion 31 of the overload clutch, thetwo portions of the clutch revolve together. If torque values exceed thesetting of the clutch, the balls are forced out of the detents and thesprings yield to allow this to happen. Balls 30 will continue to rotatein the groove 29 of clutch portion 28 until such time that torque valuesagain fall below the set figure in which case the balls again settleinto the detents in the portion 28 of the overload clutch. At this timethe two portions of the clutch are again driven simultaneously.

Clutch portion 31 may be formed integrally or, as shown here, rigidlysecured to a driving drum member 34. The portions of the overload clutchand the driving drurn are suitably journalled within the housing 15.Here they are shown as being supported by suitable bearings 35 whichengage with their inner races a shaft 36 that in turn is journalledwithin the housing by bearings like those supporting the overload clutchand the driving drum and hence also numbered '35.

A bearing 37 supports a stop plate of cam configuration 38 whichincludes, as shown in FIGURE 1, the cam lobe 39. The stop plate or camstop 38 is controlled in whether it is allowed to rotate or not, asshown in FIG- URE 1, by a dog 40 which in turn is linked as at 41 totrigger 25. When trigger 2-5 is in the position shown in FIGURE 1, thecam or stop plate 38 can not rotate. When trigger 25 is drawn toward thepistol grip 11, however, cam plate 38 is free to rotate. In normaloperation, trigger 25 is depressed long enough to release the cam 38 andis immediately released. Pressure on the trigger causes dog 40 to moveaway from the lobe 39 long enough for the cam plate 38 to startrevolving. When the trigger is released, cam 39 is riding on the outsideof the cam plate 38 beyond lobe 39 and is held in yielding contact byany suitable means such as spring 42. When lobe 39 again returns to thedog 40, the cam plate 38 is stopped again. Thus, a means is provided forallowing cam plate 38 to revolve freely when desired, and to startrevolving but. to be stopped after a single revolution, when desired.

At 44 in FIGURE 3, is seen what is referred to as the shaft plate. Thisplate is suitably fixed to shaft 36 as by pin 45. A drive spring 46encircles the drive drum 34 and has its two ends arranged to be engagedin slots in the cam plate 38 and the shaft plate 44. This structure isseen clearly in FIGURE 3 Where end 47 of spring 46 is engaged in slot 48of the cam plate 38 and end 49 of the spring 46 is engaged in the slot50 of the shaft plate 44. The operation of this mechanism is as follows.

Whenever trigger 25 is pulled in order to withdraw dog 40 from cam lobe39, the cam plate 38 is free to rotate. For this reason the spring 46 isnot prevented from tightening on the drum 34. As end 49 of the spring 46is held in the slot 50 of the shaft plate 44, the friction of the springagainst the drum 34 tends to cause it to tighten about the drum and gripit securely. Under these circumstances, the shaft plate 44 is driven bythe drum 34 until such time as any load applied to the shaft causes theoverload clutch 2831 to release or until such time as the lobe 39 of camplate 38 engages again the dog 40. When the latter happens, the end 47of spring 46 is suddenly stopped. Spring 46 is wound about the drum 34in such a manner that when the end 47 of the spring 46 to receive theblades 64 of the cutting structure.

is held in a stationary position, the friction of drum 34 with respectto spring 46 tends to unwrap the spring. The spring reacts by yieldingslightly in an outward direction as though it were beginning to bestraightened, and in so doing, the grip of the spring 46 is releasedfrom the drum 34. At this point, rotation of shaft plate 44 ceases(although drum 34 continues to rotate) and shaft 36 remains stationaryuntil dog 40 is again released from lobe 39 of the cam plate 38.

On its end nearest to shaft plate 44, shaft 36 extends outside ofhousing 15 and has appropriately secured thereto a gear 51 which mesheswith a gear 52 that is secured to the central driven shaft of the tapingcartridge 19. Whenever shaft 36 is rotated, therefore, gear 51 (drivinggear 52) actuates the taping mechanism. Whenever shaft 36 is heldstationary, the taping mechanism likewise is stationary.

As shown in FIGURE 3, cartridge 19 is somewhat narrower than the spacebetween the housing 15 and gear 52 and hence a spacer block 54 isinserted between them in order to make a solid connection between thecartridge and the housing while maintaining the alignment of gears 51and 52. This arrangement allows for some variation in cartridge widthand also provides sufficient thickness for dowel pins 20 and screw 21 tooperate successfully. Spacer block 54 may also be seen in fragment inFIGURE 1.

In FIGURE 4 the cartridge 19 is shown in section together with afragment of gear 51 and shaft 36. Gear 52 is journalled on frame 19 byany suitable means such as the shaft 55. A smaller gear 56 is alsosecured to the shaft for simultaneous rotation with gear 52.

At the left in FIGURE 4 may be seen a pair of rollers 57 and 58 whichare linked together by a pair of side pieces or links 59. These linksare pivoted about the support 60 for roller 57 so that the entireassembly may swing with respect to the cartridge on occasion, as whenloading the taper, for example.

Tape 18 is secured to feeding means, in this case the tape feeding wheel61, by adhering its sticky side 18S thereto. Tape feeding wheel 61 isslotted as at 62 in order The cutting blades are supported by a carrierto which the blades 64 are appropriately secured as by the cap screwsshown in that figure. Carrier 65 is pinned to shaft 66, which isrotatably secured to the taping cartridge 19, in any manner (not shown).

A gear 67 may be seen in FIGURE 6 to be pinned to the tape feeding wheel61 so as to cause the two to 1'0- tate together. It will also be seen inthat figure that the pins 63 secure the various portions of the tapefeeding wheel 61 to shaft 69. All of the portions 61 of the tape feedingwheel 61 are therefore driven whenever the gear 67 is caused to rotate.This gear 67 may be seen in FIGURE 4 to mesh with the gear 56 on shaft55. Gear 67 may be also seen in FIGURE 4 to mesh with the gear 68 thatis secured to shaft 66 so that the knife carrier 65 is driven insynchronized relationship to the tape feeding wheel 61.

In FIGURE 6 again, it may be observed that there are rollers 70 whichrotatably embrace the shaft 69 and do not, therefore, have to rotatewith the shaft but rotate about it. Spaced from shaft 69 is a shaft 71to which a toothed driving roller 72 is secured. About the rollers 70and 72 are reeved or placed the bands 74 which are toothed on theirinner surface as to mate and cooperate with the teeth on the exteriorsurface of the driving roller 72. A gear 75 secured to shaft 71 mesheswith gear 52 and is driven at a relatively high rate of speed whenevergear 52 rotates. Actually, the speed of the gears is important only interms of the speed imparted to the tape feeding wheel and the tapereleasing belts as explained below.

As shown in FIGURE 4, the belts 74 extend into the radial grooves in thetape feeding wheel 61 and it may be said therefore that the tapeengaging surfaces of the belts 74 intersect the tape engaging surface ofthe tape feeding wheel. In fact the two units intersect each other insuch a manner that tape following the surface of wheel 61 automaticallyengages the bell 74 land is removed from the surface of the wheel 61 inorder to follow the belt. In order for this to occur, the belts mustmove at least as fast as the tape engaging surface of the feeding wheel61. As a matter of fact, since it is the sticky surface of the tape thatis facing the belts, it is important that the tape engaging surface ofthe belts moves at a faster lineal rate than the tape engaging surfaceof the wheel 61. Comparing the gear ratios, gear 56 and gear 67 to thegear ratios of gear 75 with gear 52, it is apparent that the belts 74are moving at a substantially higher lineal rate than the surface ofwheel 61. For this reason, tape 18 is not only removed from the wheel 61but fails to stick to any considerable extent to the belts 74, as theyare constantly slipping with respect to the tape. The extension of belts74 in a substantially straight line path away from the wheel 61 also'provides a tape guiding structure. Tape 18 is so lightly tacked to thesurface of belts 74 that when the belts circle around the driving roller72, tape 18 is proje cted straight downwardly as shown in FIGURE 4.

Belts 74 may be made of any suitable flexible substance that isslippery, and plastics such as Teflon or silicone rubber are named asexemplary materials.

The tape applying structure may be seen to consist principally of aC-shaped member 76 which carries a C- gear 77. C-shaped member 76 andits C-gear 77 are journalled in frame 19 as shown in FIGURE 8. Bushings78 are a means for providing free rotation of the member 77 within theframe 19.

Gear 77 meshes with two gears, one of which is designated 79 is carriedby shaft 71, and the other of which is designated 80 and is secured to ashaft 81 suitably journalled in frame 19. Shaft 81 also carries the gear82 that meshes with gear 52. Gear 82 is identical in size and toothnumber to gear 75. The gears 79 and 80, therefore, are driven at thesame speed. They are also of identical size and they mesh appropriatelywith the teeth of C-gear 77 C-gear 77, like the C-shaped member 76, isprovided with an opening at one side in order to admit an item to betaped such as the bundle of wires 84 in FIGURE 4. As there is a gap ingear 77, it is necessary to have the two gears 79 and 80 to maintainconstant rotation and synchronization of C-mernber 76. A yielding member85, secured to C-mem-ber 76, provides a yielding pressure on the tapeagainst an object such as the bundle of wires 84 when it is being taped.As here shown, the yielding member is a double C-shaped spring 85 theends of which are suitably cut so as to allow the free ends to overlapeach other as seen clearly in FIGURES 4 and 5. When wires 84 are engagedby either being forced into the opening 22. or by having the cartridgemoved toward them, they engage the sticky side 185 of the tape as shownin FIGURE 5. The tape sticks to the wires and is carried back intocontact with the double C-spring 85, as shown in FIGURE 5.

At this stage of operation, trigger 25 is pulled and released whichallows the driving mechanism to rotate gear 52 once. With the gear ratioillustrated here, the gears 75 and 82 are rotated four times in a singlerevolution of gear 52. There is produced, therefore, a similar number ofrotations of the gears 79 and 80 and hence C- gear 77, as they all havethe same pitch diameter. C- gear 77 does not, of course, have the samenumber of teeth as gears 7980 because of the break in its structure toallow objects to be placed therein via the opening 22. Although aspecific gear train is described here illustratively, others may beused, and the critical fact is to have C- gear 77 driven a whole numberof revolutions for each impulse of the driving mechanism.

As shown in FIGURES 6 and 7, rotation of C-member 76 begins to wrap thetape around the wire bundle 84 and the tape is thereby pulled free frombelts 74 and follows the outer surface of C-member 76 because of thespeed with which it is rotating. Although four revolutions of C-member76 are more than necessary to wrap the tape as shown in FIGURE 2, it ispreferable to assure complete wrapping of the tape than to risk leavingan end that is not pressed tightly against the wire bundle. Because thegears and 82 are Whole number fractions of gear 52, a single revolutionof gear 52 as driven by gear 51 will leave the tape applying structure76 as shown in FIGURE 4 whenever the dog 40 stops the cam plate 38. Asthe tape feeding and cutting means is operated at the same time as thetape wrapping means is functioning, and this may be seen in FIGURE 7 forexample, when the bundle of wires has been completed, a second piece oftape (which is illustrated in FIGURE 7 as having just been cut andstarted to follow belt 74) will be hanging across the opening of tapingstructure 76. As the nonsticky side 18N of tape 18 will be facing thebundle of wires 84 that are then completely wrapped with tape, however,they may be pulled out and simply brushed past the free end of the tapehanging down over the opening of the tape applying unit 76.

As shown in FIGURE 6, some of the gears are on the inside of the frame19 and some are on the outside. Any gears that mesh with each other, ofcourse, must be on the same side of the wall of frame 19 adjacent to thegears.

Spacer block 54 may be seen in FIGURE 6 to be suitably secured to frame19 as by the countersunk screws 86. Any suitable means such as thespacers '87 and screws 88 may be used to secure the two sides of frame19 together in properly spaced relationship.

It is apparent that many modifications and variations of this inventionas hereinbefore set forth may he made without departing from the spiritand scope thereof. The specific embodiments described are given by wayof example only and the invention is limited only by the terms of theappended claims.

What is claimed is:

1. A taper comprising a frame, a slotted tape feeding wheel rotatablymounted on said frame, means for sticking tape to said wheel or bothsides of said slot, a knife means movably secured to said frame andgeared to said slotted tape feeding wheel, said knife entering said slotregularly, a tape releasing means movably secured to said frame andhaving a portion thereof intersecting the periphery of said slotted tapefeeding wheel, and means for driving said tape feeding, cutting, andreleasing means in coordinated relationship whereby said slotted tapefeeding Wheel is driven at a slower rate than said tape releasing means.

2. A taper comprising a frame, a tape feeding means on said frame, meansfor sticking tape on said tape feeding means, a rotating tape cuttingmeans cooperating with cutting tape while it is stuck to said tapefeeding means, an elongated tape releasing means movably secured to saidframe and having a portion thereof intersecting the periphery of saidtape feeding means, continuously operating motor means, clutch meansoperably secured to said motor means and to said tape feeding, cuttingand releasing means, and clutch control means secured to said frame andsaid clutch for driving said tape feeding, cutting and releasing meansintermittently.

3. The taper of claim 2 in which said tape feeding, cutting andreleasing means are secured to a separate frame relative to said drivingmeans, said driving means is mounted in a housing, cooperatinginteracting position determining means secured to said frame and saidhousing, and releasible means for holding said frame and said housing inassociation with each other with the position determining means engaged.

4. The taper of claim 3 in which said cooperating positioningdetermining means are dowels and openings slidably receiving saiddowels, and said releasible means is a headed, threaded member.

5. The taper of claim 2 in which there is a tape applying means adjacentto said tape releasing means comprising a portion of said frameextending beyond said tape releasing means and having an open-ingtherein extending to its periphery, one portion of said frame adjacentsaid opening being pointed to facilitate the engagement of said taperapplying means with the object to be taped, a C-shaped member rotatablymounted in said frame, means for stopping said C-shaped member with theopen portion of said C-shaped member aligned with the opening in saidframe, means for rotating said C-shaped member after tape from said tapereleasing means depending in front of the opening in said frame has beenthrust into said C- shaped member by an object to be taped being thrustthereinto carrying the tape with it.

6. The structure of claim 5 in which said C-shaped member is providedwith oppositely disposed yielding means for pressing the tape against anobject to be taped thrust into it and said C-shaped member is ofsubstantial ly greater diameter than thickness.

7. The structure of claim 6 in which said yielding means have oppositelydisposed finger-like projections which are interleaved.

8. In a taping device of the type in which portions of tape are precutto length and presented to a wrapping structure and having a frameincluding an opening extending to its periphery, the improvementcomprising a C- shaped wrapping member rotatably mounted in said frame,stop means associated with said 'C-shaped wrapping member for stoppingit with the opening of the C-shaped wrapping member facing the openingof said frame, means secured to said frame for rotating said C-shapedmember in a controlled manner, and a pair of yielding members oppositelydisposed within said C-shaped member for pressing tape against an objectto be taped that is thrust into said C-shaped member.

9. A hand taper comprising: a frame, a supporting handle secured to saidframe, a grooved tape feeding roller rotatably secured to said frame,means for orienting tape with its adhesive surface bearing upon theperiphery of said tape feeding roller; tape releasing means including anendless belt movably secured to said frame and positioned so as toextend into the groove of said tape feeding roller; driving meanssecured to said frame and engaging said tape feeding roller and tapereleasing means and driving the former at a lesser lineal speed than thelatter; means including oppositedly disposed intersecting spring fingersrotatably secured to said frame for receiving tape from said tapereleasing means and for winding said tape about an object to be taped.

10. A hand taper comprising: a frame, a supporting handle secured tosaid frame, a tape roll support secured to said frame; a continuouslyoperating motor means secured to said frame; clutch means operablysecured to said motor means; clutch control means secured to said clutchand mounted near said handle; gear drive means,

rotatably secured to said frame and secured to said clutch means; ataping cartridge secured to said frame with an elongated transverseopening therein adapted to receive objects to be taped; a grooved tapefeeding roller rotatably secured to said taping cartridge, said tapefeeding roller being provided with transverse slots in the peripherythereof; gear means rigidly secured to said tape feeding roller andoperably secured to said gear driving means; cutting means, includingknife edges, rotatably secured to said taping cartridge and disposed sothat said knife edges enter radially the transverse slots of said tapefeeding roller; gear means rigidly secured to said cutting means andoperably secured to the tape feeding roller gear means, the ratio ofteeth therebetween being such that the knife edges of said cutting meansintersect the periphery of said tape feed-ing roller only at thetransverse slots thereof; an endless belt with internal teeth thereonmovably secured to said taping cartridge and reeved in the groove ofsaid tape feeding roller, so as to engage tape carried thereon; gearmeans engaging the internal teeth of said endless belt and rotatablysecured to said taping cartridge said gear means being in engagementwith said gear driving means and of such a tooth ratio therewith so thatthe lineal speed of said endless belt is greater than that of said tapefeeding roller; tape winding means adapted to receive the tape from saidendless belt and wrap said tape about the object to be taped including aC-shaped member rotatably secured to the tape cartridge; gear meanssecured to said C-shaped member and operably secured to said geardriving means the tooth ratio therebetween being such that the openingof said C-shaped member is always in alignment with the elongatedopening of said taping cartridge when said gear driving means is atrest; intersecting spring fingers secured inside said C-shaped memberadapted to yieldingly grip the object to be taped; and cam means securedto said cam driving means for stopping said gear driving means after onerevolution thereof.

References Cited by the Examiner UNITED STATES PATENTS Re. 22,981 3/1948Fitch 83922 1,944,142 1/1934 Abbott et a1 156517 X 1,948,796 2/1934Muller 83345 2,093,112 9/1937 Montgomery 226l34 2,3 84,575 9/ 1945 Stull226-96 2,723,116 11/ 1955 Abbott 226134 2,726,084 12/1955 Shee 226-962,768,692 10/1956 Engel 83-345 2,769,633 11/1956 Krueger 226-962,834,499 5/1958 Semkow 156-486 3,031,368 4/ 1962 Zent 156486 EARL M.BERGERT, Primary Examiner.

DOUGLAS J. DRUMMOND, Examiner.

9. A HAND TAPER COMPRISING: A FRAME, A SUPPORTING HANDLE SECURED TO SAIDFRAME, A GROOVED TAPE FEEDING ROLLER ROTATABLY SECURED TO SAID FRAME,MEANS FOR ORIENTING TAPE WITH ITS ADHESIVE SURFACE BEARING UPON THEPERIPHERY OF SAID TAPE FEEDING ROLLER; TAPE RELEASING MEANS INCLUDING ANENDLESS BELT MOVABLY SECURED TO SAID FRAME AND POSITIONED SO AS TOEXTEND INTO THE GROOVE OF SAID TAPE FEEDING ROLLER; DRIVING MEANSSECURED TO SAID FRAME AND EN-